Haiti's Cholera Outbreak Tied To Nepalese U.N. Peacekeepers

More than 100 years after the eradication of cholera in the island nation of Haiti, the disease has reemerged with a vengeance. A new study out of Yale University traces the outbreak back to an infected Nepalese disaster response team, dispatched by the UN in the aftermath of Haiti's massive 2010 earthquake. Robert Siegel speaks with the study supervisor, Muneer Ahmad.